Clopidogrel Impurity 91
Impurity reference standard · Clopidogrel
- CAS number
- 317322-48-8
- Molecular formula
- C16H18ClNO4S
- Molecular weight
- 355.84
- Purity
- 95%+
About Clopidogrel Impurity 91
Clopidogrel Impurity 91 is a specified impurity of Clopidogrel. It is registered under CAS number 317322-48-8.
The compound is characterised by its molecular formula C16H18ClNO4S and a molecular weight of 355.84, with the two-dimensional structure shown above. Because it shares the Clopidogrel scaffold, it is typically used to track process-related and degradation impurities of Clopidogrel during method development, forced degradation and stability studies.
Each pack ships with a certificate of analysis reporting purity of 95%+ together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Clopidogrel impurities
The same parent compound, neighbouring impurity numbers.
Need this standard, or a related one?
Send the compound name, CAS number or a structure file — we confirm availability, pack size and lead time, usually within one business day.